" From: nick.alfano@xxxxxxxxxx " " " There is a 2" " difference between the 68-70 AMX rear end and a 71-74. Not sure what the " overall length is but the backing plate to backing plate measurement is a " fraction off 52" on the early style and 54 on the later style. nb: the early amx rear -is-the-same- as the hornet/gremlin v8 rear, for those who don't already know. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought